US609269A - Trap for pumping-wells - Google Patents

Description

Patented Aug. I6, |898.

H. ETHERIDGE. TRAP FUR PUMPING WELLS.

` (Application led Feb. 23, 1898.)

(No Modal.)

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SPECIFICATION forming part of Letters Patent No. 609,269, dated August 16, 1898. Application filed February 23, 1898. Serial No. 671,366. (Normodel.)

useful Improvements in Traps for Pumping# WVells, of which the following is a specification. v

This invention relates to certain new and useful improvements in traps for`pumping-- wells.

The invention has for its object the provision of a new and novel means whereby sand deposits within water or other wells may be trapped and separated from the water, thus allowing a pure and constant supply of water to the pump. In deep wells Where cylindrical strainers are employed the sand deposits gradually work into .the openings or perforations of the strainer, where they become lodged, prevent afull supply ofwater, and iinally require the strainer to be withdrawn, cleaned, and replaced. Therefore my object is to provide a device in which these disadvantages are overcome.l

lVith the above object in View the invention nally consists in the novel construction, combination, and Varrangements of parts, as will be hereinafter more specifically described in detail.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of' this specification, and wherein like numerals of'reference designate like parts throughout the several views, in which- Figure 1 is a vertical side view of my iinproved sand-trap'arranged within a well. Fig. 2 is a vertical sectional view of the same. Fig. 3 is a sectional the line a ac of Fig. l.

Referring to the drawings, the numeral l designates a metal cylinder or tube which is of such diameter as that of the well. This cylinder has a thread formed around its upper end and screwed tightly into the head 2. A number of small perforations 3 are formed through the cylinder, which extend around the periphery of said cylinder. A plain metal cylinder et, having its outer diameter a trifle less than the interior diameter of the aforesaid outer cylinder, is provided. This plan view of the same on e extends down through the plain cylinder to the lower endof the same and is held to the cylinder at its .top bythe strap l0, which is arranged around the collar portion 5. A number of small perforations 1l is formed near the lower end of this tube or suctionpipe extension, `and to the extreme end is secured the cap 12.

A plain cylinder 13 of greater diameter than that of the tube 9, but less than the interior diameter of the cylinder 4t, is provided. This cylinder is closed'at its lower end by the head or cap 14 and is connected to the aforesaid cap l2 of thesuction-pipe by the set-screw 15, and the height of this cylinder is such that it will extend from the bottom up along the line of perforations of the outer cylinder, so as to form a safe trap; and in order to keep this cylinder in position at equal distance all the way around the tube 9 I employ the inwardlyextended bars or arms 16, which are made fast to the cylinder. This device, when inserted within the bottom of the well and connected up to the suction-pipe, would operate in the following manner: The water surrounding the outer cylinder l would be prevented from rushing or iiooding through the perforation, as the inner water-level is lowered by virtue of the cylinder 4 damming said ows or waterfalls as `would ordinarily take place through these perforations were the laforesaid cylinder or darn 4 removed, or, in other words, there would be no waterfall or flooding through any of the perforations whatsoever, and consequently no sand would be drawn through, as the action of the cylinder fi acts as a dam to the water that would ordinarily flood through these perforations and would result in the whole body of water IOO surrounding the cylinder 1 to be gradually lowered, and thereby prevent any disturbance of the sand surrounding this perforated cylinder. The cylinder 13, again, prevents any disturbance of the water, for the reason that it is caused to rise several feet before it again descends to ascend in the tube or suctionpipe extension 9.

It will be readily apparent that by causing the water in the well to rise and fall, as described, and indicated by the arrows at Fig. 2, the water will practically be free from all sand and other extraneous matter before reaching the pump-barrel.

Slight modifications may be made in the construction of this device without departing from the general principles involved in the invention, such as perforating the entire surface of the outer cylinder from top to bottom and the cylinders 4 and 13 adjusted to suit such a condition.

Having thus fully shown and described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Atrap for water or other Wells, comprising a pump-tube having its lower end perforated, a trap-cylinder surrounding the said pump-tube and which is closed at its lower end and extends a suitable distance above the said perforated portion of the pump-barrel leaving a lwater-space between them, a damcylinder extending a suitable distance above and surrounding the aforesaid trap-cylinder with water-space between them, and an outer perforated cylinder surrounding the said damcylinder with water-space between them, all arranged and combined to operate substantially as described.

2. A trap for water or other wells, com prising a pump-tube having its lower end perforated; a trap-cylinder surrounding the said pump-barrel and which is closed at its lower end and extends a suitable distance above the said perforated portion of the pump-tube leaving a water-space between them, a damcylinder incasing the aforesaid trap-cylinder, and closed at its upper end around the pumpbarrel and extending a suitable distance above the aforesaid trap-cylinder leaving a waterspace between them, and an outer perforated cylinder surrounding the said dam-cylinder with water-space between them, all arranged and combined to operate substantially as specified.

3. A trap for water or other wells comprising a pump-tube having its lower end perforated, a trap-cylinder surrounding the said pump-barrel and which is closed at its lower end and extends a suitable distance above the perforated portion of the pump-barrel leaving a water-space between them, a damcylinder inclosing the aforesaid cylinder and closed at its upper end around the pump-barrel and extending a suitable distance above the aforesaid cylinder, leaving a water-space between them, and an outer perforated cylinder inclosing the said dam-cylinder and which is closed at its top around the pumptube leaving a water-space between it and the dam-cylinder with perforations, all arranged and combined to operate substantially as specified.

Signed by me, at McKeesport, Pennsylvania, this 111th day of February, 1898.

HARRY ETHERTDGE.

Witnesses:

R. C. RANKIN,v E. L. MAY.

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